Butler, TN Radon Levels

Q: What EPA Radon Zone is Butler in?

Butler is in Johnson County, EPA Zone 2.

Q: Why are radon readings shown from areas near Butler?

No homeowner radon tests have been submitted for Butler yet, so readings from the closest cities and the Johnson County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Butler?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Butler radon levels and find certified testing and mitigation professionals to keep your home safe

Butler, TN Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Johnson County, TN

Zip Code 37640

Situated in northeastern Tennessee's Johnson County within the Johnson City Metro area, Butler lies in the Appalachian region where sedimentary rock formations can produce moderate radon levels. Without current testing data for the 37640 zip code, residents should conduct home radon testing to determine their individual exposure levels.

20.00

pCi/L area average

Above EPA Action Level

Johnson County average: 20.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Butler itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Butler, TN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Butler, TN

No homeowner tests have been submitted for Butler yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Elizabethton	12.1 mi	7.33 pCi/L	3
Mountain City	13.5 mi	20.00 pCi/L	1
Bluff City	17.3 mi	5.00 pCi/L	1
Bristol	19.9 mi	6.50 pCi/L	2
Johnson City	22.6 mi	4.20 pCi/L	5
Blountville	25.5 mi	20.00 pCi/L	1
Jonesborough	28.2 mi	7.00 pCi/L	2
Telford	31.2 mi	12.00 pCi/L	1

Johnson County Radon Profile

The soils and bedrock of Johnson County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Johnson County average 20.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Johnson County to test, as levels can differ between neighboring homes.

Radon FAQ for Butler, TN

What EPA Radon Zone is Butler in?

Butler and the 37640 zip code are in Johnson County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Butler?

No homeowner radon tests have been submitted for Butler yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Johnson County average—are the best available indicator of local conditions until Butler homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Butler?

Radon mitigation in Butler typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Butler?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.